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FLENDER COUPLINGS
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FLUDEX
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Operating instructions 4612 en
Edition 10/2017
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FNO, FNA, FND, FNDB, FNDS
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Operating fluid: Water
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Table of Contents
Related Manuals for Siemens FLENDER FLUDEX Series
Summary of Contents for Siemens FLENDER FLUDEX Series
- Page 1 FLENDER COUPLINGS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - FLUDEX - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Operating instructions 4612 en...
- Page 3 Technical data General notes FLENDER COUPLINGS Safety instructions Transport and storage FLUDEX 4612 en Technical description Fitting Operating instructions Start-up Operation Faults, causes and remedy Maintenance and repair Spare parts, customer service FNO, FNA, FND, FNDB, FNDS Declarations Edition 10/2017...
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Page 4: Edition
Legal notes Warning note concept This manual comprises notes which must be observed for your personal safety and for preventing material damage. Notes for your personal safety are marked with a warning triangle, those only for preventing material damage appear without a warning triangle. Depending on the level of hazard, the warning notes are shown in reverse order of seriousness, as follows. - Page 5 Note on the EC Machinery Directive 2006/42/EC The couplings described here are “components” in accordance with the Machinery Directive and do not require a declaration of incorporation. Symbols in these operating instructions This symbol additionally indicates an imminent risk of explosion in the meaning of Directive 2014/34/EU. This symbol additionally indicates an imminent risk of burns due to hot surfaces in the meaning of standard "DIN EN ISO 13732-1".
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Page 6: Table Of Contents
Contents Technical data ........... . . General data . - Page 7 Faults, causes and remedy ......... General .
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Page 8: Technical Data
Technical data Enclosed with the coupling delivery and the documentation is an orderspecific dimensioned drawing showing all the technical data necessary for fitting (see Fitting data field). The coupling can be fitted with the aid of these instructions only in conjunction with the orderspecific drawing of the coupling. The technical data to the FLUDEX couplings listed in these instructions are documented on the orderspecific drawing of the coupling (see "Operating and Coupling Data"... -
Page 9: Coupling Version
Coupling version FNDS-SB FNDS-HB FNDB Fig. 1: Coupling types FLUDEX 4612 en Operating instructions 10/2017... -
Page 10: General Notes
General notes Introduction These instructions are an integral part of the delivery of the coupling and must be kept in its vicinity for reference at all times. WARNING Risk of serious injury through flying fragments Risk of serious injury through flying fragments and/or risk of damage to the coupling. –... -
Page 11: Safety Instructions
Safety instructions Observe the information in section 2, "General notes"! DANGER Risk of explosion Risk of explosion when operating in potentially explosive areas. Incorrect changes made to the coupling will create ignition sources. Any changes on the part of the user are not permitted. This applies equally to safety features designed to prevent accidental contact. - Page 12 DANGER Danger to life through switchedon installation Risk of being caught or drawn in by rotating and/or movable parts. To carry out work on the coupling, the system must always be stopped. The drive unit must be secured against being switched on accidentally (e.g. by locking the key switch or removing the fuses from the power supply).
- Page 13 WARNING Risk of serious injury through flying fragments Risk of serious injury through flying fragments and/or risk of damage to the coupling through use of defective spare parts. Flender guarantees only the genuine spare parts supplied by Flender. Nongenuine spare parts have not been tested or approved by Flender. Nongenuine spare parts may alter technical characteristics of the coupling, thereby posing an active or passive risk to safety.
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Page 14: Transport And Storage
Transport and storage Observe the information in section 3, "Safety instructions"! Scope of supply The products supplied are listed in the dispatch papers. Check on receipt to ensure that all the products listed have actually been delivered. Parts damaged and/or missing parts must be reported to Flender in writing immediately. -
Page 15: Storage Of The Coupling
Storage of the coupling NOTICE Risk of damage to the coupling through improper storage Impairment of the physical properties of the coupling and/or coupling parts. The storage area must be dry (air humidity less than 65 %) and free from dust. Ensure that no condensation occurs. -
Page 16: Technical Description
Technical description Observe the information in section 3, "Safety instructions"! General description of the "FN.." series If a dimensioned drawing has been made out for the clutch, the data in this drawing must be given priority. The user of the system must make the dimensioned drawing available. 141 140 153 10 101 102 105... -
Page 17: Construction Of Couplings
The FLUDEX coupling is a hydrodynamic fluid coupling. The coupling parts on the in and output sides are not connected to one another mechanically. The torque is transmitted by the fluid flowing in the coupling and conducted via radial blades. During continuous operation very low rotary speed slip occurs. FLUDEX couplings of the "FN.."... -
Page 18: Marking Of The Coupling Parts For Use In Potentially Explosive Areas
Marking of the coupling parts for use in potentially explosive areas Note Couplings which do not have a CE marking must not be used in potentially explosive areas. Couplings to be used in potentially explosive areas have the following marking: Flender GmbH II 2G c b IIB T3 -30 °C ≤... -
Page 19: Fitting
Fitting Observe the information in section 3, "Safety instructions"! DANGER Risk of explosion Danger to life through ignition of any potentially explosive atmosphere while carrying out fitting work on the coupling. Whilst fitting the coupling there must not be an explosible environment. NOTICE Damage to the coupling, damage to other components Damage to the coupling, the bearings and the shaft through incorrect pulling on. -
Page 20: Instructions For Machining The Finished Bore, For Axial Fastening, Set Screws And Balancing
Instructions for machining the finished bore, for axial fastening, set screws and balancing 6.1.1 Finished bore • On part 1: Demount the flexible elements (12). • On part 11 FNDSHB: Remove parts 8 and 10. • On part 11; 32: Remove part 10. - Page 21 If other shafthub connections (e.g. taper or stepped bore) are to be used instead of the drivetype fastenings provided for, Flender must be consulted. Drivetype fastenings with taper action are not permissible. 0.2 ± 0.1 Part 1 Part 120 Part 11 Part 32 Fig.
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Page 22: Parallel Keyway
For drive by means of parallel keys the following fit pairs are prescribed for the bores: Table 2: Fit pairs Bore D Selection of fit over up to Shaft tolerances Bore tolerances Shaft tolerance to FLENDER standard Shaft tolerance to DIN 748/1 System "standard shaft"... -
Page 23: Axial Securing
6.1.3 Axial securing The hubcarier part (120) and the brake drum or brake disk (32) are axially secured, preferably with a locking plate and retaining screw (for tightening torques, see table 3). Before turning the recess in the brake drum or brake disk (32), Flender must be consulted. Table 3: Tightening torques of the retaining screws Retaining-screw thread... - Page 24 Part 1 Part 120 Part 11 Part 32 Part 32 Fig. 6: Set screws Table 4: Setscrew assignment and tightening torques of the set screws Part 120 Part 1 Part 11 Part 32 FLUDEX N‐EUPEX Tightening torque of the size size set screw [Nm] maximum...
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Page 25: Balancing
6.1.5 Balancing FLUDEX couplings with prebored hubcarrier part (120) are delivered balanced. The fluid coupling is G 6.3 balanced in two levels with fluid filled in (halfkey balancing). If the addon coupling has been fitted with finished bores, it is G 6.3 balanced in two levels (halfkey balancing). Prebored addon coupling parts are delivered unbalanced. -
Page 26: General Information On Fitting
General information on fitting Observe the information in section 3, "Safety instructions"! Fitting work must be done with great care by trained and qualified personnel. As early as during the planning phase it must be ensured that sufficient space is available for installation and subsequent care and maintenance work. - Page 27 NOTICE Damage to the coupling, damage to other components Risk of damage to the coupling through fitting forces by way of the aluminium housing. Under no circumstances must fitting forces be applied through the aluminium housing, to avoid damage to the coupling parts. Always use suitable lifting equipment.
- Page 28 Fig. 8: Fitting the coupling parts 1) Orings 2) Hubcarrier part (120) 3) Main coupling • Before the main coupling is fitted to the hubcarrier part (120) by its flange, any dirt must be removed from the interior of the hubcarrier part (120) and the corresponding area of the main coupling. •...
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Page 29: Alignment
Alignment WARNING Risk of serious injury through flying fragments Risk of serious injury through flying fragments and/or risk of damage to the coupling. The fitting misalignment must not be beyond the permissible range. It is however recommended to align the coupling as precisely as possible so as to have an additional margin for misalignment in operation. Fig. -
Page 30: Possible Misalignments
Possible misalignments max. max. ΔKa min. min. Fig. 10: Possible misalignments 1) Axial misalignment 2) Angular misalignment 3) Radial misalignment Misalignments of the coupling parts in relation to each other can be caused by inaccurate alignment during assembly, but also by actual operation of the equipment (expansion due to heat, shaft deflection, insufficiently rigid machine frames, etc.). -
Page 31: Permissible Shaft Misalignment Values For Radial Misalignment Δkrperm. And
6.5.4 Permissible shaft misalignment values for radial misalignment ΔKr and difference in gap perm. dimension ΔS perm. Values given in mm, rounded off Table 5: Permissible shaft misalignment values for radial misalignment ΔKr perm. and difference in gap dimension ΔS perm. -
Page 32: Startup
Startup Observe the information in section 3, "Safety instructions"! NOTICE Damage to the coupling Damage to the coupling parts owing to not removing the transport lock. Operation with the transport locks fitted is not permissible. All transport locks must be removed. Procedure before startup NOTICE Damage to the coupling... - Page 33 WARNING Risk of scalding Risk of serious injury through escaping hot operating fluid, when it is being changed. Wear suitable protective gloves, protective glasses and protective clothing. Allow the operating fluid to cool down. The behaviour and the efficiency of the FLUDEX coupling are decisively affected by the quantity of operating fluid put in.
- Page 34 Marking lines with assigned letters "W" to "Z" have been cast in raised relief on the coupling housing to assist filling the coupling and checking the filling level. These can be marked on the coupling, and/or further markings can be added when the coupling is first filled with the correct filling quantity. When filling and/or checking the filling level, turn the mark with the required filling quantity (in case of intermediate values the corresponding intermediate position) to the top position (12 o’clock).
- Page 35 WARNING Risk of serious injury through rotating components Risk of serious injury through contact with rotating components. The coupling must be fitted with suitable safeguards to prevent any contact. The operation of the coupling must not be impaired by the safeguard. This also applies to test runs and when checking the direction of rotation.
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Page 36: Operating Fluid
7.2.1 Operating fluid The fluid coupling must only be operated with water or a water emulsion. When using a water emulsion the following must be observed: ─ Compatibility with the sealing material "NBR" (nitrile butadiene rubber). ─ pH value 5 to 8 The fluid should be mixed with only a small quantity of salts and contain only a sufficiently small concentration of other additives. -
Page 37: Operation
Operation Observe the information in section 3, "Safety instructions"! DANGER Risk of explosion Coupling with worn flexible elements (12) are potential explosion hazards. Coupling with worn flexible elements (12) (for wear mark ΔS , see section 10) must not be operated in potentially explosive areas. -
Page 38: General Operating Data
General operating data During operation of the coupling watch for: • Changes in running noises (see item 9.2 in table 7) • Sudden vibrations (see item 9.2 in table 7) WARNING Serious injury Rotating components may cause injury during work on the still rotating coupling. All work on the coupling must be carried out only when it is at a standstill. -
Page 39: Faults, Causes And Remedy
Faults, causes and remedy Observe the information in section 3, "Safety instructions"! General The following irregularities can serve as a guide for fault tracing. Where the system is a complex one, all component units must be included when tracing faults. The coupling must run with little noise and vibration in all operating phases. -
Page 40: Possible Faults
Possible faults Table 7: Possible faults Faults Possible causes Remedy Sudden changes in the noise Change in alignment. Stop the installation. level and/or sudden vibrations. If necessary, rectify any cause of the changes in alignment (e.g. by fastening loose foundation bolts). Check and, if necessary, adjust alignment;... -
Page 41: Incorrect Use
WARNING Risk of serious injury through flying fragments Risk of serious injury through flying fragments and/or risk of damage to the coupling. Only undamaged coupling parts must be used. In particular the teeth, holes, screw threads and joining and sealing surfaces must not be damaged. DANGER Risk of explosion Risk of explosion when operating in potentially explosive areas through damage. -
Page 42: Possible Faults When Selecting The Coupling And/Or Coupling Size
9.3.1 Possible faults when selecting the coupling and/or coupling size ─ Important information for describing the drive and the environment are not communicated. ─ System power too high. ─ System speed too high or too low. ─ Starting frequency too high. ─... -
Page 43: Possible Faults In Maintenance
9.3.3 Possible faults in maintenance ─ Maintenance intervals are not being adhered to. ─ An incorrect operating fluid and/or an incorrect quantity of operating fluid is being put in. ─ No genuine Flender spare parts are being fitted. ─ Specified tightening torques are not being adhered to. ─... -
Page 44: Maintenance And Repair
Maintenance and repair Observe the information in section 3, "Safety instructions"! DANGER Danger to life through switchedon installation Risk of being caught or drawn in by rotating and/or movable parts. To carry out work on the coupling, the system must always be stopped. The drive unit must be secured against being switched on accidentally (e.g. -
Page 45: Changing The Operating Fluid
WARNING Risk of serious injury through flying fragments Risk of serious injury through flying fragments and/or risk of damage to the coupling. – The order of the described fitting steps must be adhered to. – Adhere to specified tightening torques. Observe the instructions relating to cleaning and/or treatment of the bolts with auxiliary materials. -
Page 46: Changing The Shaftsealing Rings
10.2 Changing the shaftsealing rings The shaftsealing rings of the inner seal must be replaced after 12 000 operating hours or after 2 years of operation. We recommend also replacing the other seals and rolling bearings at the same time. In order to keep maintenancerelated disruptions in operation as few as possible, it is recommended to keep replacement parts in stock. -
Page 47: Replacement Of The Flexible Elements
10.4 Replacement of the flexible elements Only original NEUPEX flexible elements must be used for replacement to guarantee troublefree torque transmission and faultfree operation. The flexible elements (12) can be replaced without moving the coupled machines. After the screw connection part 2/3 is released, part 3 is shifted axially and turned towards part 2. The flexible elements (12) are now freely accessible. - Page 48 Fig. 14: Removing the FLUDEX coupling a 1) Mark The axial space thus obtained is sufficient to detach the main coupling axially from the hubcarrier part (120) and demount it radially after the bolts (139) have been loosened. At the same time care must be taken that the Orings (117, 138) are exposed (see figure 15).
- Page 49 The space between the shafts now suffices for the fitted hubs, if necessary, to be pulled off by means of commercially available tools after releasing the axial fixture. Located at the endface side in the hub in the hubcarrier part (120) are two tapped holes offset by 180°, which may be used to insert drawing bolts (see figure 16).
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Page 50: Disassembling The Fludex Coupling
10.6 Disassembling the FLUDEX coupling For detailed part designations, see section 11. FLUDEX couplings should as far as possible be repaired at the manufacturer’s works. Before disassembly the housing parts must be marked on the flange in their positions relative to one another. -
Page 51: Reassembling The Fludex Coupling
10.7 Reassembling the FLUDEX coupling CAUTION Risk of corrosion burns through chemical substances Avoid burns when working with corrosive cleaning agents. Observe manufacturer’s instructions for handling cleaning agents and solvents. Wear suitable personal protective equipment (gloves, safety glasses). • Before refitting the residual old grease must be removed from all components. •... -
Page 52: Filling Quantities For Fludex "Fn
10.9 Filling quantities for FLUDEX "FN.." couplings, sizes 370, 490, 655 and 887 Approximative values for water or water emulsion With drive via blade shell (101) (outer wheel), valid for T = 1.3 x T max. nom. Table 11: Filling quantities for FLUDEX "FN.." couplings, sizes 370, 490, 655 and 887 Speed 1/min Output Size... -
Page 53: Filling Quantities For Fludex "Fn
10.10 Filling quantities for FLUDEX "FN.." couplings, sizes 425, 565 and 755 Approximative values for water or water emulsion With drive via blade shell (101) (outer wheel), valid for T = 1.3 x T max. nom. Table 12: Filling quantities for FLUDEX "FN.." couplings, sizes 425, 565 and 755 Speed 1/min Output Size... -
Page 54: Spare Parts, Customer Service
Spare parts, customer service By stocking the most important spare parts on site you can ensure that the coupling is ready for use. To order spare parts, refer to the spareparts list. We guarantee only the genuine spare parts supplied by us. WARNING Risk of serious injury through flying fragments Risk of serious injury through flying fragments and/or risk of damage to the coupling through use of... -
Page 55: Spareparts List For Types "Fno", "Fna", "Fnd
11.2 Spareparts list for types "FNO", "FNA", "FND" When ordering spare parts, please quote the order number of the original delivery. The order number is stamped on the coupling (blade shell) and specified on the orderrelated title page. 153 107 120 139 117 101 114 107 103 3 12... - Page 56 Table 13: Spareparts list of types "FNO", "FNA" and "FND" Part Part Part Designation Designation Designation Part 1 (N-EUPEX) Hub-carrier part Screw stud Part 2 (N-EUPEX) Stepped ring Hexagon nut Part 3 (N-EUPEX) O-ring Shaft-sealing ring Part 10 (N-EUPEX) Hexagon-head bolt Ring Part 11 (hub) Hexagon nut...
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Page 57: Spareparts List Of Types "Fndb", "Fnds
11.3 Spareparts list of types "FNDB", "FNDS" When ordering spare parts, please quote the order number of the original delivery. The order number is stamped on the coupling (blade shell) and specified on the orderrelated title page. FNDS-SB FNDB 101 114 107 103 2 13 3 12 23 10 32 50 51 139 117 2 13 3 12 23... - Page 58 Table 14: Spareparts list of types "FNDB" and "FNDS" Part Part Part Designation Designation Designation Part 2 (N-EUPEX) Cheese-head bolt Screw plug (fusible safety plug) Part 3 (N-EUPEX) O-ring Drain plug (prechamber) Brake disk O-ring Sealing ring Part 10 (N-EUPEX) Parallel key Flange cover Part 11 (hub)
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Page 59: Declarations
Declarations 12.1 EU declaration of conformity EU declaration of conformity The manufacturer, Flender GmbH, 46395 Bocholt, Germany, declares that the equipment described in these operating instructions: FLENDER COUPLINGSFLUDEX® FNO, FNA, FND, FNDB, FNDS Operating fluid: Water is in conformity with Article 1 and Article 13, Paragraph 1 b) ii) of Directive 2014/34/EU and complies with the requirements of Directive 2014/34/EU and the following standards: EN 1127-1 : 2011... - Page 60 FLENDER COUPLINGS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - FLUDEX Operating instructions 4612 en Edition 10/2017...